katrina cost roughly $100 billion. the u.s. army corps of engineers spent i think on the order of $15 billion after the storm to fix the problem. it would have taken maybe $8 billion to $10 billion or something like that to fix it before the problem. so, for every $1 that you spend ahead of disaster protecting against disaster has been on average nationwide shown to save you $4 of not-incurred losses. >> right. >> in new orleans it would be a 10-1 benefit cost. >> i should also say there are some people and harry chscherre is one of them and say it's still not fixed. >> and you have to think about it because we should not fall into the trap what we are in new orleans. so, there's the discussion about barriers. i think all options are right now on the table. what we have to do is spending money so engineers, not levees, but engineers can go through the options and price them out and then see for how long that is good. >> i just want to intervene, again, on the political issue here which is that the republican party has been agai